On Friday, December 5, 2014 7:42:13 AM UTC-5, wrote:
I am replacing my Cirrus fuselage probe with a new rail mounted probe. From my research it appears ILEC wants it turned up with the head in the same horizontal plane as the horizontal stabilizer. This will be the all moving stabilator on my Cirrus. Do you guys agree with this placement?

Lane
XF

Sensing quality, assuming fin mounting is generally improved by being as high as possible above the wing root wake and well forward of the pressure field from the tail surfaces. "Well forward", from my experience, is at least 24 inches. I have found no improvement when going more than 36 inches forward and the improvement is fairly small above 24 inches.
UH